Quotables
"That’s an amazing invention, but who would ever want to use one of them?"
President Rutherford B. Hayes ; Said in 1876, after Alexander Graham Bell demonstrated the telephone to him at the White House
PatentStorm News
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 8143608 | Package-on-package (POP) optical proximity sensor Various embodiments of a package-on-package optical sensor comprising three distinct different packages are disclosed. The three different packages are combined to form the optical proximity sensor, where the first package is a light emitter package, the second pack... | 03/27/2012 |
| 8115185 | System and/or method for reading, measuring and/or controlling intensity of light emitted from an LED A system and/or a method reads, measures and/or controls intensity of light emitted from a light-emitting diode (LED). The system and/or the method have a light intensity detector adjacent to the LED for reading and/or measuring the intensity of light emitted from t... | 02/14/2012 |
| 8097869 | Diversity proximity communication A diversity proximity communication system formed on two juxtaposed chips, one having a two-dimensional array of transmit elements, the other having a two-dimensional array of receive elements. The receive and transmit elements need not be aligned and may have nomin... | 01/17/2012 |
| 8097868 | Galvanic optocoupler and method of making A galvanic optocoupler of the type monolithically integrated on a silicon substrate and having at least one luminous source and a photodetector interfaced by means of a galvanic insulation layer. The photodetector can be a phototransistor realized in the silicon sub... | 01/17/2012 |
| 8044378 | Method of manufacturing photo interrupter including a positioning member with at least one positioning pin integrally provided with a connecting part, and photo interrupter manufactured thereby A method of manufacturing a photo interrupter includes forming a frame including a first frame part and a second frame part which are disposed at an interval to be facing each other, mounting at least one light-emitting element on a first board and attaching the fir... | 10/25/2011 |
| 7964860 | Energy saving driving circuit and associated method for a solid state relay An energy saving driving circuit and method is provided for use with a solid state relay (SSR). The circuit and method reduce the overall energy required to drive a solid state relay by maintaining the SSR in an “on” state with a minimal maintenance or holding c... | 06/21/2011 |
| 7956338 | Optoelectronic apparatus for transmitting digital and/or analog signals between galvanically separated circuits The apparatus includes: At least one light-emitting, optoelectronic, functional element, which, during operation, activated by an electrical signal, emits light, at least at times; at least one light-sensitive, optoelectronic, functional element, which, during opera... | 06/07/2011 |
| 7923710 | Digital isolator with communication across an isolation barrier A signal isolator comprises an isolation barrier, a transmitter, a differentiator, and a recovery circuit. The transmitter is coupled to a first side of the isolation barrier and is configured to receive and convert an information signal to a differential signal tha... | 04/12/2011 |
| 7902532 | Systems and methods involving transducer signals A system for operating a transducer comprising, a first node connected to a first transducer, a first photo-activated switching device having a first source, a first drain connected to the first node, and a first gate operative to receive a first logic signal, a fir... | 03/08/2011 |
| 7893415 | Optical semiconductor relay device for reducing transient voltage between output terminals of the relay and maintaining high operation speed and low capacitance characteristics A transient voltage occurring between output terminals during ON/OFF operation is reduced. There are provided a pair of input terminals IN1 and IN2, a pair of output terminals OUT1 and OUT2, MOSFETs N1 and N2 connected betwe... | 02/22/2011 |
| 7804078 | Device having galvanic optocoupling The present disclosure relates to an architecture of a device with galvanic optocoupling of the type having at least one optical source and one optical detector, optically connected by means of an insulation layer that functions to transmission optical signals, and ... | 09/28/2010 |
| 7791054 | Photo controller for switching a load in a hazardous environment A photo controller circuit for use in hazardous areas has an output switching (OS) circuit comprising an alternistor for ON/OFF switching of a load, and an optoisolator for gating the alternistor. A light to voltage converter (LVC) circuit generates a DC voltage pro... | 09/07/2010 |
| 7763874 | Signal detection circuit and signal detection method, and state detection circuit A signal detection circuit comprises: a driving power source that drives a photosensor and applies a voltage to a mechanical switch, wherein the photosensor has a light-emitting device, and a light-receiving device to output an electric signal corresponding to an am... | 07/27/2010 |
| 7732795 | Circuit arrangement for the electrical isolation of signal lines The invention relates to a circuit arrangement for the electrical isolation of signal lines, with an input (IN) for applying an input signal, an output (OUT) for releasing an output signal, and an initial branch (1) with an opto-coupler (OK) for optically cou... | 06/08/2010 |
| 7687791 | Ethernet data signal transmission apparatus Data signal isolation apparatus comprising a first media converter adapted to convert outgoing electrical data signals into outgoing optical data signals, an optical data signal transmission means adapted to transmit said outgoing optical data signals, a second medi... | 03/30/2010 |
| 7683356 | Voltage converting circuit A voltage converting circuit for converting a first voltage signal into a second voltage signal for supplying voltage for an electronic component includes a photoelectric coupler and a connector. The photoelectric coupler includes a light-emitting element and a phot... | 03/23/2010 |
| 7659531 | Optical coupler package A method is disclosed. The method includes forming a substrate with a leadframe and a molding compound. The molding compound fills internal spaces in the leadframe and forms a dam structure. An optical emitter and an optical receiver are placed on the substrate. An ... | 02/09/2010 |
| 7635852 | Optical coupler with first and second division connector portion A device unit 46 is constituted by including a lead frame 50 on which a light-emitting mold portion 48 and a light-receiving mold portion 49 are mounted. Moreover, an exterior casing for housing the device unit 46 is constituted of... | 12/22/2009 |
| 7629600 | Arrangement comprising two elements which can be rotatably displaced in respect of one another Data is to be exchanged between a rotating element and a further element, with the rotating element being rotated by way of a hollow shaft. Light is coupled into torus halves and is reflected into a torus half and onto torus inner walls so often by way of a small op... | 12/08/2009 |
| 7598510 | Serial interface connecting circuit for supporting communications between different types of serial interfaces A serial interface connecting circuit includes a first IC (10) with a signal transmitting and a signal receiving terminal, a second IC (20) with a signal transmitting and a signal receiving terminal, and a connecting circuit (30) coupled between... | 10/06/2009 |
| 7598511 | Energy saving driving circuit and associated method for a solid state relay An energy saving driving circuit and method is provided for use with a solid state relay (SSR). The circuit and method reduce the overall energy required to drive a solid state relay by maintaining the SSR in an “on” state with a minimal maintenance or holding c... | 10/06/2009 |
| 7589338 | Semiconductor die packages suitable for optoelectronic applications having clip attach structures for angled mounting of dice An optocoupler package is disclosed. The package includes a substrate comprising a substrate surface, a first device, and a clip structure attached to the first device. The clip structure and the first device are mounted on the substrate, and the first device is ori... | 09/15/2009 |
| 7582887 | Optocoupler current transfer ratio temperature compensation method and apparatus Current transfer ratio temperature variation of an optocoupler is compensated by generation and summing of an optically generated current with a temperature dependent multiple of the optically generated current at the detector of the optocoupler. ... | 09/01/2009 |
| 7576345 | Semiconductor relay The semiconductor relay comprises: an insulated type DC/DC power supply 10 having the input terminal and the output terminal insulated from each other; a pulse transformer 20 having the input terminal and the output terminal insulated from each other; ... | 08/18/2009 |
| 7547902 | Current transfer ratio temperature coefficient compensation method and apparatus for an optocoupler An optocoupler system includes a buffer, isolation, and a detector. The system includes a current transfer ratio (CTR) with a temperature coefficient. The buffer includes a light source that generates light that passes through the isolation. A detector receives ligh... | 06/16/2009 |
| 7528399 | Controlling apparatus for gate driving signal A controlling apparatus for gate driving signal controls a gate of a power unit through a photo coupler includes a processor, a gate-controlling IC electrically connected to the processor and sending a gate driving signal of the processor to the gate, a transistor s... | 05/05/2009 |
| 7488964 | Photo coupler and method for producing the same In structures of the typical conventional photo couplers, an unwanted rotation or a dislocation during the manufacturing thereof is occurred during the manufacture of the couplers. The photo coupler according to the embodiment includes a lead frame (first lead frame... | 02/10/2009 |
| 7476890 | Optical coupling device with a detecting element in the driver that provides uniform intensity of an optical signal A photocoupler includes a LED for emitting light in accordance with an input electrical signal, a driver for supplying an electrical signal to the LED, a light receiver placed face to face with the LED and having a photodiode for receiving light emitted by the LED, ... | 01/13/2009 |
| 7476891 | Fault detection method and apparatus This invention relates to fault detection in electrical circuits. The invention provides an input module for electrically isolating an input signal received via a field sensor to be transmitted to a plurality of processors, in which the input module comprises a plur... | 01/13/2009 |
| 7459711 | Surface mount type photo interrupter and method for manufacturing the same A light emitting element and a light receiving element are mounted on the upper surface of an insulating substrate to be laterally aligned. A cap including a first hollow portion accommodating the light emitting element, a second hollow portion accommodating the lig... | 12/02/2008 |
| 7453079 | Surface mount type photo-interrupter and method for manufacturing the same A surface mount type photo-interrupter includes an insulating base, a light emitting element and a light receiving element provided on the insulating base, a first terminal electrode for the light emitting element, a second terminal electrode for the light receiving... | 11/18/2008 |
| 7449707 | Optical coupling device and electronic apparatus using same that transmits a signal with two light emitting elements and one or two light receiving elements An input side is configured with a pulse generating circuit, a delay circuit, a driving circuit, and two light emitting elements connected to the driving circuit, and an output side is configured with two light receiving elements, connected to a computation circuit,... | 11/11/2008 |
| 7449706 | Photocoupler with compensation circuit A photocoupler having a first and second light-emitting diodes, a compensation circuit, which compensates input signals to the first light-emitting diode and generates input signals to the second light-emitting diode, and further makes the current waveform at the se... | 11/11/2008 |
| 7439532 | Solid state relay, electronic device, and method for manufacturing solid state relays having a first control terminal, a first output terminal and a second output terminal as lead terminals A light-receiving element for receiving a signal light from a light-emitting element and a load-controlling power element are mounted on an output-side lead frame of a solid state relay. A first electrode of the light-receiving element is connected to a first contro... | 10/21/2008 |
| 7435985 | Zero-crossing point detection circuit A zero-crossing point detection circuit includes a hot line input, a neutral line input, a first zero-crossing point output, and a first optical coupler. The first optical coupler includes a first light-emitting diode (LED) and a first optical transistor. The hot li... | 10/14/2008 |
| 7373069 | Fiber optic tester A fiber optic tester for testing at least two fiber optic devices substantially simultaneously, comprising: a housing having a light source and at least one housing connector, the light source interior to the housing; at least one adapter having at least one first c... | 05/13/2008 |
| 7373528 | Increased power for power over Ethernet applications According to one embodiment of the invention, a method for supplying power over Ethernet includes determining whether a first port of power sourcing equipment is supplying current to a power over Ethernet device in a predetermined current range. The method also incl... | 05/13/2008 |
| 7368882 | Self-contained, self-snubbed, HID dimming module that exhibits non-zero crossing detection switching A protection circuit for an HID dimming circuit is provided. A resistive component limits the initial current after a relay closes and current flows from a charged capacitor to a second capacitor. An inductive component limits the rate of change of current through t... | 05/06/2008 |
| 7369945 | Apparatus and method for storing and transporting data related to vapor emissions and measurements thereof The present invention provides apparatus and a methods for collecting, transmitting and storing fugitive gas emission data. An embodiment of the invention collects fugitive gas with a sampling probe and into a emission monitoring device. The device then sends and st... | 05/06/2008 |
| 7369726 | Optical communication between face-to-face semiconductor chips One embodiment of the present invention provides a system that communicates between a first semiconductor die and a second semiconductor die through optical signaling. During operation, the system converts an electrical signal into an optical signal using an electri... | 05/06/2008 |
